Segment and Geographic Data - Revenues by Geographic Location (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Jun. 08, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 08, 2016	Jun. 30, 2016	Jun. 30, 2015
Successor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 214.3			$ 214.3
Successor | North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		174.4			174.4
Successor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		29.3			29.3
Successor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 10.6			$ 10.6
Predecessor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 650.2		$ 988.8	$ 2,340.1		$ 3,019.3
Predecessor | North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	535.9		816.2	1,917.2		2,507.5
Predecessor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	78.8		129.7	291.9		374.1
Predecessor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 35.5		$ 42.9	$ 131.0		$ 137.7